JPS6333995B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for various gardening tools or household tools, which are composed of a working tool and a handle, and the handle of the working tool is removably provided.

Certain working tools and a large number of gardening tools consisting of one handle are usually fixed to this handle,
Moreover, a conical sleeve on the tool allows the end of the handle to fit into the sleeve. Fastening is accomplished by screws or rivets extending through holes in this sleeve. Furthermore, it is known in the case of household tools to provide the handle with a tapered male thread, which is screwed into a corresponding female thread in the work tool. Furthermore, various quick couplings are known per se.

To perform gardening tasks efficiently and in a short time, a large number of tools are required, such as hoes, rakes, cultivators, furrowers, and garden tools. However, transporting and storing such tools is problematic, especially in gardens that are small and do not have a designated tool room.
As a result, most garden owners are left with minimal tools that do not allow them to work optimally with their gardens.

The object of the invention is to provide a device which does not involve the problems of storing and transporting tools mentioned above and which makes it possible to use the respective optimum tools in an economical manner even in the case of small gardens.

According to the present invention, devices for various gardening tools are made,
This device consists of a working tool and a handle, and the handle is removably attached to the working tool. According to this invention, in order to solve the above problems,
The following is proposed. That is, the relative lengths of the radial guide surfaces 23, 45 of the female coupling sleeve 19 and the male coupling nipples 16, 16' are adjusted by the play created by the tilting of the male coupling nipple 16 inside the female coupling sleeve 19. is determined to be such that it disappears when the holding member 31 is operated.

The garden owner may also have a number of working tools associated with this device, all of which may be connected to the same handle. This usually assumes that only one person will be working in the garden. Moreover, if there are a large number of handles belonging to this device, further simplification and low cost result. Furthermore, even if a fixed handle or multiple handles are used, each necessary garden tool can be quickly connected manually. The single required handle (or a few handles) is stored separately from the working tools, which are hung flat on a wall, for example, and placed on a shelf or in a specific holder. It can be installed without taking up much space. Transport from the storage location to the use location is also significantly facilitated, since there is no need to transport a large number of tools that are obstructed by their handles.

This joint should connect the tool and the handle reliably, preferably against torsional compression and traction, and should be as susceptible to contamination as possible.

A preferred embodiment includes a quick coupling having a male coupling nipple on the work tool and a coupling sleeve on the handle containing the coupling mechanism. The coupling mechanism consists of a tightening screw which acts on the coupling nipple and which twists and secures the coupling nipple against tilting and traction at the same time, which forms it without rotational symmetry.

In this case, the coupling sleeve is configured with a slight inclination when the coupling nipple is fixedly clamped inside the coupling sleeve, so that on the one hand it becomes a play-free guide and on the other hand it can be tightened despite the small diameter of the coupling sleeve. The female thread length for the screw can be made sufficiently long.

Furthermore, a large number of types of automatic snap-fastening joints can be made.

Further advantages and features of the invention emerge from the subclaims and the description taken in conjunction with the accompanying drawings, which features can be used individually or in combination with one another. A few embodiments are shown in the accompanying drawings and will be described in detail with reference to the drawings.

In FIG. 1, a gardening tool device is shown, to which a handle 11 having a quick fitting 12 at its terminal portion is combined with a number of various working tools 13, 14, 15, which are connected to a fitting nipple 16 or 16'. These coupling nipples 16 are
Fixed and connected to those working tools so that they do not come off. In the case of the work tool shown in the figure, a ridge pulling tool 3,
Hoes 14 and fan brooms 15 are taken up. All types of garden tools requiring handles can be pulled into this device since they are equipped with suitable coupling nipples. In the case of a device consisting of a number of garden tools, handles of various configurations and/or designs can also be included in the device.
Therefore, costs for procuring, storing and transporting these gardening tools can be substantially reduced. Traditionally, each gardening tool has a unique pattern.
For this reason, it was extremely difficult to store it in a small space. Particularly for small gardens and gardens without a specific tool room, the above-mentioned garden equipment makes it possible to have access to suitable working tools in each case and for which nevertheless a fixed shed is sufficient. This is because only a book handle is needed to use a large number of working tools that should be easily stored. It is a quick joint 12 that can be connected quickly without any difficulty, yet withstands pressure, traction and torsion sufficiently reliably and without the risk of contamination.
This can be done by In particular, the connecting parts of the working implement must be constructed in a particularly simple and uncomplicated manner, since the working implement has a greater number of parts than the quick connection part of the handle. The reason for this is that they are exposed to an even greater degree. It is therefore advantageous if the working tool has a male coupling nipple and therefore a female coupling part, ie, a separate quick coupling with a movable tensioning element, on the handle.

In FIG. 2, the rapid member from FIG. 1 is shown. Pattern 1
1 is completely connected to the pipe 1 as shown in Figures 1 and 2.
7, preferably consisting of an aluminum pipe, or as can be seen from FIG.
It can consist of a wooden handle 18 to which 7' is fixed.

At the end of the pipe 17 close to the working tool, a coupling sleeve 19 is pushed into it as an insert made of synthetic material, which insert rests on a pipe end 20 with a flange 21 . The insert has a large cylindrical centripetal opening 23 inserted into the interior of the handle from an opening 22 at the end of the handle two to three times the diameter of the opening. A fixing part 24 is connected to the introduction part constituted by the aperture 23, which in the illustrated embodiment is constituted by an aperture having an irregular hexagonal cross section.

As can be seen from Figure 4, the surface of the above fixed part is
They have regular hexagonal angles (120°) facing each other, but their individual surfaces are constructed with varying sizes, with the two wide surfaces 25 forming a relatively narrow surface. 26. On the other side of these surfaces 25 two further relatively narrow connecting surfaces 27 are connected, which are connected by a surface 28.

Both surfaces 25, which form an angle of 60° between them, serve as pressing surfaces. The fixed part above is the insert body and pipe 1
Towards one side with respect to the central longitudinal axis 29 of 7,
Moreover, it is highly eccentric in the direction of the bottom surface 26, so that between the surface 28 and the outer periphery of the insert a relatively thick wall 30 is constructed, into which the clamping element 31 can be inserted. Screw in the constituent screws.
The external thread of the clamping member 31 cooperates with an internal thread 32, which is likewise provided in the metal pipe wall and in the synthetic wall part 30. In addition to the metal threaded part 33, the clamping member 31 has an injection-molded clamping actuation handle 34 made of synthetic material.
Consists of. The operating handle is provided with a collar 35 which, by abutting against the outer surface of the pipe 17, constitutes a limiting stop to prevent the clamping member 31 from being over-screwed.

The opening constituting the fixing part 24 is open to the inner end of the insert, so that any dirt that might otherwise get into this insert can fall towards it. In case of severe contamination, the insert can also be flush-cleaned by means of a jet of water. Moreover, a transverse web 37 is provided in the area of this inner end 36.
, which web projects laterally on the other side of the fixed part 24 (see also the dotted line in FIG. 4) and
It constitutes a stop on one side of the joint nipple 16 in the pressing direction. The transition between the cylindrical centripetal opening 23 and the hexagonal eccentric fixing part is chamfered to form an inlet ramp.

The coupling nipple 16 consists of a hexagonal bar 40 of regular hexagonal cross-section, which in the example shown is connected to the garden tool 13 via a weld 39, as well as a synthetic sleeve 41 which is pressed onto it by a press fit and forms a radial guide part. Become.

The hexagonal bar 40 is provided at a relatively short distance in front of the free end of the bar with a circumferential recess constituting a contact surface 43 for the clamping member 31, which contact surface is adapted to constitute a cylindrical outer circumferential surface. are recessed to a minimum depth. This contact surface 43 delimits at the free end 42 of this coupling nipple a hexagonal head 44 whose front end face is slightly chamfered.

The synthetic sleeve is enlarged in two stages at the portion that projects into the opening 23 to facilitate the introduction of the coupling nipple into the opening 23. Its relatively thick step constitutes a radial guide surface 45 co-operating with the wall of this opening 23, and towards said radial guide surface facing towards the opening 22, a radial shoulder directed outwards as well as this synthetic material. An annular portion 47 of the sleeve 41 follows. Furthermore, a conical transition part 49 continues into the annular part via a synthetic ring 48,
This transition is guided onto the hexagonal bar 40 by means of a plurality of internal lips 50 and is connected to the part of the garden implement, so that in particular the weld seam 39 is covered and the hexagonal bar 40 is Make it completely invisible from the outside.

A synthetic ring 48 is assembled into a hanger which, via two pin portions 51 of significantly reduced diameter, is attached to the ear shaft 5 which can be seen in FIG.
2 is connected. This ear shaft is simply made as a synthetic injection molded part, since the ear shaft is injection molded flush with the synthetic ring 48. The thin pin portions 51 can be rotated through 90° so that the implement can be hung thereon. If this ear shaft becomes a hindrance when used on another day, it can be easily removed by tearing it off from the pin portion. Moreover, it is extremely advantageous for displaying and selling, as labels and price tags can be attached.

The embodiment shown in FIG. 3 is different from that shown in FIG.
The difference is that the coupling nipple 16' is made entirely of synthetic material. However, this formation can be described as similar to FIG. 1 with one exception. That is, the above-mentioned exception means that the contact surface 43 does not come from a cylindrical groove made by lathe work, as in the case of metal, but is slightly pushed in, and moreover, from the remaining front part of this joint nipple. Similarly, the recess 43' has a hexagonal shape. The cylindrical step 53, 45, which is integral with the front part of the coupling nipple, as well as the following transition part 54, can be constructed hollow so as not to be solid. This transition portion 54 replaces the annular portion, synthetic ring and transition member. Synthetic material joint nipple 1
Advantageously, 6 is made of synthetic material and is used as a working tool which is subjected to less severe loads and is connected to the garden tool 15 by a rotary friction weld 55.

In FIG. 2, the fitting nipple 16 is connected to the pipe 1.
7 and an insert during introduction into the coupling sleeve. This introduction can be made substantially coaxial, i.e.
It is shown that the central longitudinal axis 29 of the handle can be made to substantially coincide with the central longitudinal axis 56 of this joint nipple. The installation of this fitting nipple is extremely simple. This is because the value is determined in stages. Thus, for example, the diameter of the head 44 is considerably smaller than that of the opening 23. The head 44 abuts the introduction ramp 38 at about the same time as the relatively small step 53 approaches the area of the opening 22. An axial pre-alignment therefore takes place. The fixing part 24 has already been pre-aligned in its rotational position, although the hexagonal part of the joint part still has a relatively large play in the direction of rotation, so that this joint nipple likewise no longer It is designed so that it cannot be rotated freely. The head 44 also has a considerable play in its fixing part 24 and there is still some play between the radial guide surface 45 of the synthetic sleeve 41 which is subsequently inserted into the opening 23 and the wall of the opening 23. Moreover, there is a precisely predetermined play.

As you can see from Figures 3 and 4, the threaded part 3
If the clamping member 31 is actuated by rotating and screwing in the actuating handle 34, the threaded part 33 will then press against the contact surface 43' and thus force this fitting nipple into its two hexagonal positions. Press against the pressing surface 25 with the surface. In this case, this joint nipple is now finally secured against twisting and is also fixed in the traction direction by means of a frictional connection, and is secured in the compression direction by the end face 4 of the joint nipple.
2 and the web 37.

This coupling nipple is then slightly inclined inside the insert, ie its central axis 56 forms a small angle, for example 1.5 DEG, with the central axis 29 of the handle. As can be seen from FIG. 3, the radial guide surface 45 is tilted in the opening 23, so that the play that previously existed between the guide surface and the opening is eliminated, so that Guidance now takes place with significantly less play. This play understandably depends on the axial length and the angle of inclination of the radial guide surface. Furthermore, the eccentricity of the fixed part 24 has the following advantages. In other words, the thick wall 30 caused by the eccentricity allows the internal thread of the synthetic material to be relatively long, so that the external thread can withstand relatively high loads and frequent unscrewing.
By designing the contact surface 43' in a hexagonal shape, it is ensured that the screw makes surface contact in the case of synthetic nipples, which are somewhat sensitive. In the illustrated embodiment, the clamping element 31 simultaneously performs another function, namely holding the insert in the pipe 17 or 17'. It should be noted that the fitting nipple is fixed by a friction connection;
Moreover, the slightly lowered contact surface 43' secures the joint nipple so that it does not slip out even if the tightening member 31 is not completely tightened. Compression abutment and inner radial guide surface and contact surface 4 for the clamping element
The fact that 3' is located at the free end of the joint nipple has an advantageous effect on the above-mentioned function, since the bending force exerted on the joint hardly loads the clamping member. This is because the lever arm located between the radial guide surface 45 in the area of the opening 22 and the radial guide surface in the area of the head 44 is considerably larger.

The arrangement of the invention makes it possible to provide a very robust joint of a pipe with a constant diameter equal to the normal handle diameter of about 23 to 25 mm. In this case, for example, the diameter of the opening 23 is about 19 mm. The fact that the radial guide surface 45 has a diameter that is approximately 1 mm smaller reliably guarantees a play-free guiding action. This solid hexagonal bar can have a dimension (hexagonal radius) of 12 mm between mutually facing faces and, for a nipple length to be introduced of approximately 80 mm, a radial guide surface 45 The length is approximately 18mm. Depending on how the bottom surface 26 of the fixing part 24 is placed, said surface 25 is in each case clamped by the wedging action of the surface of the hexagonal bar. This provides an additional crimping action within the pipe 17 of the insert, which is desirable. Moreover, if the dimensions are appropriately selected, it can be pressed directly against the bottom surface 26.

The arrangement of elongated nipples on the implement also allows this nipple to be used as a temporary handle. Furthermore, many types of handles, such as long handles for regular work, can be used to make the same work tool suitable for special purposes. It is advantageous to be able to increase the applicability by providing a short handle, such as a rake as a base rake, for example. In addition to pure garden tools, other tools such as brooms, snow shovels, etc. can also be connected to this device.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing a handle and a number of gardening tools that can be connected to the handle; Fig. 2 is a longitudinal sectional view of a quick joint in which the handle and the work implement can be connected to each other, and in which the handle is being connected or disconnected; FIG. 3 is a cross-sectional view similar to FIG. 2, but in which the joint fixedly connects the handle and the garden implement to each other, the joint nipple being entirely made of synthetic material; FIG. - a cross-sectional view along the line; 11,111,217... pattern, 13,14,1
5,113,114...Working tools, 12,11
2,212...quick joint.

Claims (1)

[Scope of Claims] 1. A handle-equipped tool device for various gardening or household use consisting of a work tool and a handle, wherein the handle is removably attached to the work tool, and a number of work tools are attached to the handle. the handle and the implement are interconnectable via a manually actuated quick coupling, the quick coupling comprising a female coupling sleeve and a retaining member;
a male fitting nipple with a fixed working surface for the holding element, the male fitting nipple and the female fitting sleeve being attached to each other in the area of the sleeve opening and having a relative play before moving the holding element. In a device having a radial guide surface 45 and a stop surface for fixing in the axial pressure direction, interconnected in such a way that twisting is reliably prevented when tilted relative to the holding member, The relative lengths of the radial guide surfaces 23, 45 of the female coupling sleeve 19 and the male coupling nipples 16, 16' are maintained by the play created by the tilting of the male coupling nipple 16 inside the female coupling sleeve 19. A device characterized in that the ratio is determined such that it disappears by operating the member 31. 2 The male fitting nipple 16 is connected to at least the terminal portion 4.
4. The device according to claim 1, which is polygonal at 4, in particular hexagonal. 3 Male type joint nipple 1 to female type joint sleeve 19
There is a sloped surface 25 for preventing twisting and fixing the male fitting nipple of the holding member 3.
3. The device according to claim 1 or 2, wherein the device is configured to be able to be pressed by 1. 4 Working surfaces 43, 4 that act together with the holding member 31
4. A device according to claim 1, wherein 3' is at the end of the male fitting nipple. 5. Device according to claim 1, characterized in that the female fitting sleeve (19) is formed by a synthetic insert arranged in the metal tube (17). 6 Female type joint sleeve 19 connects to male type joint nipple 1
6. The device according to claim 1, having a pressure direction stop 37 for the end of the 6. 7. Device according to claim 1, in which the active surfaces 43, 43' for the retaining member 31 are in the region of the groove around the male fitting nipple 16. 8. Device according to one of the claims 1 to 7, characterized in that the quick coupling 12 has a substantially radially arranged clamping screw as the holding element 31. 9 The anti-twisting element of the female coupling sleeve 19 has a shape which is matched with the shape of the anti-twisting element of the male coupling nipple 16 with a large amount of play, so that the male coupling nipple is pressed against the female coupling sleeve when introduced. 9. A device according to any preceding claim, configured to be pre-oriented. 10 Female fitting sleeve 1 including anti-twist element
10. A device according to claim 2, wherein the section 24 of 9 has a hexagonal cross-section with three long sides 25, 28 and short sides 26, 27 between them. 11. A device according to any one of claims 1 to 10, wherein the retaining member (31) secures the male fitting nipple (16) in the female fitting sleeve (19) in a frictional engagement. 12 Working surfaces 43, 43' for the holding member 31
12. The device according to claim 11, wherein the retaining element 31 is secured in a non-frictional manner even if the retaining element 31 is accidentally released. 13. The device according to claim 1, wherein the radial guide portions 23, 45 in the region of the opening 22 of the female coupling sleeve 19 are cylindrical. 14 The recess 24 of the female coupling sleeve 19, which accommodates the terminal part 44 of the male coupling nipple 16, is eccentric within the recess and has an internal thread 32 for the tightening screw 31 in the wall 30 of the female coupling sleeve 19. 14. The device according to any one of claims 8 to 13, comprising: 15 Female joint sleeve 1 with tightening screw 31
15. Device according to any one of claims 8 to 14, characterized in that 9 is fixed in a metal tube 17. 16. Device according to any one of claims 8 to 15, characterized in that the clamping screw (31) has a collar (35), the collar of which rests on the outer side of the metal tube (17). 17 The holding member is a portion that is slidable in the transverse direction with respect to the pushing direction, and this portion has a locking portion that engages with the recess of the male joint nipple 16, and an actuation portion, and this actuation portion is 14. A device as claimed in any one of claims 1 to 13, having a push button projecting from the mold joint sleeve for releasing the joint. 18. Claim 1, wherein the locking part and the actuating part pass through a hole in the female coupling sleeve and are connected by a coupling part on the outside of the female coupling sleeve.
7. The device according to 7. 19. A device according to claim 17 or 18, wherein the actuating part passes laterally through an opening in the female fitting sleeve behind the end of the male fitting nipple.